This image is of Hemiaster heberti echinoid fossils. These animals existed in the Cretaceous Period. Fossils were found in Thebaid, Egyp...

This image is of Lyria figarii gastropod fossils. These animals existed in the Cretaceous Period. Fossils were discovered in Thebaid, Eg...

This image is of a  Spirifera marhlini  brachiopod fossil. The animal existed in the Silurian Period. Fossil was discovered in Dudley, Sc...